Proper leaf development is essential for plant growth and development, and leaf morphogenesis is under the control of intricate networks of genetic and environmental cues. We are interested in dissecting these regulatory circuits genetically and report here the isolation of two Arabidopsis dominant mutants, abnormal shoot5-1D (abs5-1D) and abs7-1D identified through activation tagging screens. ...

Skin is the primary tissue exposed to ambient air pollution because it acts as an interface between body and surrounding atmosphere. We previously reported that particulate matter 2.5 (PM2.5) induced oxidative stress subsequent chemokine release in human epidermis, followed by neutrophil chemotaxis. identified this study leaf extracts from Camellia sinensis Argania spinosa showed high radical s...

The infection process of Phytophthora capsici on susceptible and resistant pepper cultivars were studied by scanning electronic microscopy. The development of P. capsici within 24 h post inoculation (hpi) was quite similar between susceptible cv. early Calwonder (EC) and resistant cv. Criollo de Morelos 334 (CM334). Zoospores encysted on the leaves and formed adhesive cysts at 3 hpi. Cyst germi...

In this study, S. nigra L. and ebulus (Adoxaceae) species belonging to the Sambucus genus were examined. Species of collected from northern Turkey anatomical comparisons made. Stem leaf anatomy examined by light microscopy. The plants have woody stem anatomy. druse crystals which are main characters observed in taxa. Differences found number cells vascular bundles, arrangement druze crystals, s...

It has been generally assumed that the exchange of gases between the intercellular spaces of leaves and the external atmosphere occurs to an appreciable extent only when the stomates of the leaves are open. However, attempts to correlate the observed rate of CO2 absorption either with the number of stomates per unit area or with stomate area have met with only limited success. VERDUIN (16) beli...

Various innate-like T cell subsets preferentially reside in specific epithelial tissues as the first line of defense. However, mechanisms regulating their tissue-specific development are poorly understood. Using the prototypical skin intraepithelial γδT cells (sIELs) as a model, we show in this study that a TCR-mediated selection plays an important role in promoting acquisition of a specific sk...

As a result of salt (NaCl)-stress, sensitive varieties of maize (Zea mays L.) respond with a strong inhibition of organ growth. The reduction of leaf elongation investigated here has several causes, including a modification of the mechanical properties of the cell wall. Among the various tissues that form the leaf, the epidermis plays a special role in controlling organ growth, because it is th...

Abstract. Muangsan N, Saensouk P, Chanokkhun T, Watthana S. 2022. Comparative leaf epidermis study in Habenaria spp. (Orchidaceae) from Thailand. Biodiversitas 23: 4159-4168. The variation of epidermal and stomatal characteristics could be used for plant classification, including orchids. This aimed to investigate characters Thailand focused on the H. rhodocheila group related species. Fourteen...